Originally posted by Halogram:

If you gently press on the throttle, car hesitates a second and takes off fine. Now if you mash the pedal to the floor regardless, if your stop or going, if falls on its face and you can feel the engine struggle to go



Have you checked the fuel pressure yet?

Check the operation of the FPR while hooked to a gage.

"Those who cannot remember the past are condemned to repeat it" -George Santayana